Finding the Fourth Proportional to 195.44, 292.95 and 87.20
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Solution
The fourth proportional to 195.44, 292.95 and 87.20 is: 130.71
Step by Step Solution
- Step 1: Write the proportion equation
195.44 : 292.95 = 87.20 : x - Step 2: Convert to fraction form
195.44/292.95 = 87.20/x - Step 3: Cross multiply
195.44x = 292.95 × 87.20 - Step 4: Simplify right side
195.44x = 25,545.24 - Step 5: Solve for x
x = 25,545.24/195.44 - Step 6: Final answer
x = 130.71
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.